// Copyright (c) 2025 vivo Mobile Communication Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use crate::COMMANDS;

pub fn command(args: &[&str]) -> Result<(), String> {
    if args.is_empty() {
        println!("BlueOS kernel shell commands:");
        for (name, cmdinfo) in COMMANDS.entries() {
            println!("  {:<10} - {}", name, cmdinfo.description);
        }
    } else {
        let cmdname = args[0];
        match COMMANDS.get(cmdname) {
            Some(cmdinfo) => println!("{} - {}", cmdname, cmdinfo.description),
            None => println!("Unknown command: {}", cmdname),
        }
    }
    Ok(())
}
